def default_device_names(virt_type, instance, root_device_name,
update_func, ephemerals, swap, block_device_mapping):
block_device_info = {
'root_device_name': root_device_name,
'swap': driver_block_device.get_swap(
driver_block_device.convert_swap(swap)),
'ephemerals': driver_block_device.convert_ephemerals(ephemerals),
'block_device_mapping': (
driver_block_device.convert_volumes(
block_device_mapping) +
driver_block_device.convert_snapshots(
block_device_mapping))
}
devices = dict((bdm.get('id'), bdm) for bdm in
itertools.chain(ephemerals, swap, block_device_mapping))
get_disk_info(virt_type, instance, block_device_info)
for driver_bdm in itertools.chain(block_device_info['ephemerals'],
[block_device_info['swap']] if
block_device_info['swap'] else [],
block_device_info['block_device_mapping']):
if driver_bdm.id in devices:
bdm = devices[driver_bdm.id]
# NOTE (ndipanov): We may have chosen different values
# for bus and type so update those along with device name
bdm['device_name'] = get_device_name(driver_bdm)
bdm['disk_bus'] = driver_bdm['disk_bus']
# Swap does not have device type in driver format
bdm['device_type'] = driver_bdm.get('device_type', 'disk')
if update_func:
update_func(bdm)
def default_device_names(virt_type, context, instance, root_device_name,
ephemerals, swap, block_device_mapping,
image_meta):
block_device_info = {
'root_device_name': root_device_name,
'swap': driver_block_device.get_swap(
driver_block_device.convert_swap(swap)),
'ephemerals': driver_block_device.convert_ephemerals(ephemerals),
'block_device_mapping': (
driver_block_device.convert_volumes(
block_device_mapping) +
driver_block_device.convert_snapshots(
block_device_mapping) +
driver_block_device.convert_blanks(
block_device_mapping))
}
get_disk_info(virt_type, instance, image_meta, block_device_info)
for driver_bdm in itertools.chain(block_device_info['ephemerals'],
[block_device_info['swap']] if
block_device_info['swap'] else [],
block_device_info['block_device_mapping']):
driver_bdm.save()
def default_device_names(virt_type, context, instance, root_device_name, ephemerals, swap, block_device_mapping):
block_device_info = {
"root_device_name": root_device_name,
"swap": driver_block_device.get_swap(driver_block_device.convert_swap(swap)),
"ephemerals": driver_block_device.convert_ephemerals(ephemerals),
"block_device_mapping": (
driver_block_device.convert_volumes(block_device_mapping)
+ driver_block_device.convert_snapshots(block_device_mapping)
),
}
get_disk_info(virt_type, instance, block_device_info)
for driver_bdm in itertools.chain(
block_device_info["ephemerals"],
[block_device_info["swap"]] if block_device_info["swap"] else [],
block_device_info["block_device_mapping"],
):
driver_bdm.save(context)
def default_device_names(virt_type, context, instance, root_device_name,
ephemerals, swap, block_device_mapping):
block_device_info = {
'root_device_name':
root_device_name,
'swap':
driver_block_device.get_swap(driver_block_device.convert_swap(swap)),
'ephemerals':
driver_block_device.convert_ephemerals(ephemerals),
'block_device_mapping':
(driver_block_device.convert_volumes(block_device_mapping) +
driver_block_device.convert_snapshots(block_device_mapping) +
driver_block_device.convert_blanks(block_device_mapping))
}
get_disk_info(virt_type, instance, block_device_info)
for driver_bdm in itertools.chain(
block_device_info['ephemerals'],
[block_device_info['swap']] if block_device_info['swap'] else [],
block_device_info['block_device_mapping']):
driver_bdm.save(context)
def _list_running_instances(self, context, all_instances):
"""List running instances (on all compute nodes).
This method returns a dictionary with the following keys:
- used_images
- instance_names
- used_swap_images
- used_ephemeral_images
"""
used_images = {}
instance_names = set()
used_swap_images = set()
used_ephemeral_images = set()
instance_bdms = objects.BlockDeviceMappingList.bdms_by_instance_uuid(
context, [instance.uuid for instance in all_instances])
for instance in all_instances:
# NOTE(mikal): "instance name" here means "the name of a directory
# which might contain an instance" and therefore needs to include
# historical permutations as well as the current one.
instance_names.add(instance.name)
instance_names.add(instance.uuid)
if (instance.task_state in self.resize_states
or instance.vm_state == vm_states.RESIZED):
instance_names.add(instance.name + '_resize')
instance_names.add(instance.uuid + '_resize')
for image_key in ['image_ref', 'kernel_id', 'ramdisk_id']:
image_ref_str = getattr(instance, image_key)
if image_ref_str is None:
continue
local, remote, insts = used_images.get(image_ref_str,
(0, 0, []))
if instance.host == CONF.host:
local += 1
else:
remote += 1
insts.append(instance.name)
used_images[image_ref_str] = (local, remote, insts)
bdms = instance_bdms.get(instance.uuid)
if bdms:
swap = driver_block_device.convert_swap(bdms)
if swap:
swap_image = 'swap_' + str(swap[0]['swap_size'])
used_swap_images.add(swap_image)
ephemeral = driver_block_device.convert_ephemerals(bdms)
if ephemeral:
os_type = nova.privsep.fs.get_fs_type_for_os_type(
instance.os_type)
file_name = nova.privsep.fs.get_file_extension_for_os_type(
os_type, CONF.default_ephemeral_format)
ephemeral_gb = str(ephemeral[0]['size'])
ephemeral_image = "ephemeral_%s_%s" % (ephemeral_gb,
file_name)
used_ephemeral_images.add(ephemeral_image)
return {
'used_images': used_images,
'instance_names': instance_names,
'used_swap_images': used_swap_images,
'used_ephemeral_images': used_ephemeral_images
}